Patents by Inventor Roger Millis

Roger Millis has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230340958
    Abstract: A system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system includes vibration absorption mechanisms disposed between inner and outer housings, as well as on the outside surface of the outer housing. Methods of controlling and regulating a motor of the system to preserve the lifespan of the motor and maintain consistent airflow rates throughout the smoke evacuation system include varying a supply of electrical current to the motor so that it can operate at variable performance levels. Orifices are opened and closed in order to relieve resistance pressures within the airflow path due to clogging and blockages.
    Type: Application
    Filed: July 3, 2023
    Publication date: October 26, 2023
    Inventors: Chad S. Frampton, Shawn K. Horner, Darcy W. Greep, Frederick Shelton, Jason Harris, David Yates, Roger Millis
  • Patent number: 11725664
    Abstract: A system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system includes vibration absorption mechanisms disposed between inner and outer housings, as well as on the outside surface of the outer housing. Methods of controlling and regulating a motor of the system to preserve the lifespan of the motor and maintain consistent airflow rates throughout the smoke evacuation system include varying a supply of electrical current to the motor so that it can operate at variable performance levels. Orifices are opened and closed in order to relieve resistance pressures within the airflow path due to clogging and blockages.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: August 15, 2023
    Assignee: MEGADYNE MEDICAL PRODUCTS, INC.
    Inventors: Chad S. Frampton, Shawn K. Horner, Darcy W. Greep, Frederick Shelton, Jason L. Harris, David C. Yates, Roger Millis
  • Publication number: 20230149063
    Abstract: A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.
    Type: Application
    Filed: October 10, 2022
    Publication date: May 18, 2023
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa Fischer
  • Publication number: 20220409261
    Abstract: A smoke evacuation device that evacuates smoke from a surgical site and filters the smoke from the air. The smoke evacuation device can include a fluid trap for removing moisture from the smoke. The smoke evacuation device can also include a filter with a compression mechanism for compressing a filter medium. The smoke evacuation device can also include features for controlling flow parameters, noise, and vibrations of the device. A remote activation device can also be used to activate the smoke evacuation device upon detection of certain system parameters.
    Type: Application
    Filed: January 10, 2022
    Publication date: December 29, 2022
    Inventors: Shawn K. Horner, Jason L. Harris, Frederick Shelton, Chad S. Frampton, Steven D. Andrews, Benjamin J. Danziger, Mark D. Glassett, Darcy W. Greep, Roger Millis, David C. Yates
  • Patent number: 11464560
    Abstract: A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: October 11, 2022
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Patent number: 11446078
    Abstract: A portable, battery powered electrosurgical wave generator is usable in performing electrically driven medical procedures. The wave generator can be small and lightweight to enable a user to carry and use the wave generator in non-operating room type settings. The wave generator can include a control unit that generates output signals in each of a cutting mode, coagulation mode, and a bipolar mode. The control unit can use a single circuit structure to generate the output signals for the cutting, coagulation, and bipolar modes. The output signals can be generated solely from a voltage produced by an incorporated battery within the generator.
    Type: Grant
    Filed: July 18, 2016
    Date of Patent: September 20, 2022
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Roger Millis, Ryan D. Lewis, Paul R. Borgmeier, Darcy W. Greep, Chad S. Frampton
  • Patent number: 11234754
    Abstract: A smoke evacuation device that evacuates smoke from a surgical site and filters the smoke from the air. The smoke evacuation device can include a fluid trap for removing moisture from the smoke. The smoke evacuation device can also include a filter with a compression mechanism for compressing a filter medium. The smoke evacuation device can also include features for controlling flow parameters, noise, and vibrations of the device. A remote activation device can also be used to activate the smoke evacuation device upon detection of certain system parameters.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: February 1, 2022
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Shawn K. Horner, Jason L. Harris, Frederick Shelton, Chad S. Frampton, Steven D. Andrews, Benjamin J. Danziger, Mark D. Glassett, Darcy W. Greep, Roger Millis, David C. Yates
  • Publication number: 20190159830
    Abstract: A smoke evacuation device that evacuates smoke from a surgical site and filters the smoke from the air. The smoke evacuation device can include a fluid trap for removing moisture from the smoke. The smoke evacuation device can also include a filter with a compression mechanism for compressing a filter medium. The smoke evacuation device can also include features for controlling flow parameters, noise, and vibrations of the device. A remote activation device can also be used to activate the smoke evacuation device upon detection of certain system parameters.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Shawn K. Horner, Jason Harris, Frederick Shelton, Chad S. Frampton, Steven D. Andrews, Benjamin Danziger, Mark D. Glassett, Darcy W. Greep, Roger Millis, David Yates
  • Publication number: 20190162186
    Abstract: A system for noise and vibration management of a smoke evacuation system includes a pump that compresses air and produces a pressure differential within an airflow path. The pump may be a sealed, positive displacement pump. The system includes vibration absorption mechanisms disposed between inner and outer housings, as well as on the outside surface of the outer housing. Methods of controlling and regulating a motor of the system to preserve the lifespan of the motor and maintain consistent airflow rates throughout the smoke evacuation system include varying a supply of electrical current to the motor so that it can operate at variable performance levels. Orifices are opened and closed in order to relieve resistance pressures within the airflow path due to clogging and blockages.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 30, 2019
    Inventors: Chad S. Frampton, Shawn K. Horner, Darcy W. Greep, Frederick Shelton, Jason Harris, David Yates, Roger Millis
  • Publication number: 20180368908
    Abstract: A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.
    Type: Application
    Filed: August 14, 2018
    Publication date: December 27, 2018
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Patent number: 10085791
    Abstract: A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: October 2, 2018
    Assignee: Megadyne Medical Products, Inc.
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Publication number: 20170020598
    Abstract: A portable, battery powered electrosurgical wave generator is usable in performing electrically driven medical procedures. The wave generator can be small and lightweight to enable a user to carry and use the wave generator in non-operating room type settings. The wave generator can include a control unit that generates output signals in each of a cutting mode, coagulation mode, and a bipolar mode. The control unit can use a single circuit structure to generate the output signals for the cutting, coagulation, and bipolar modes. The output signals can be generated solely from a voltage produced by an incorporated battery within the generator.
    Type: Application
    Filed: July 18, 2016
    Publication date: January 26, 2017
    Inventors: Roger Millis, Ryan D. Lewis, Paul R. Borgmeier, Darcy W. Greep, Chad S. Frampton
  • Publication number: 20150182280
    Abstract: A self-limiting electrosurgical return electrode for use with electrosurgical procedures is disclosed. The return electrode includes a conductive element and pads disposed on opposing sides of the conductive element. The conductive element, optionally in combination with the pads, is configured to limit the density of electrical current that passes from a patient to the return electrode. The conductive element and the pads can cooperate to define two separate working surfaces on opposing sides of the return electrode. The return electrode can also be safely used with patients of substantially any size and without requiring adjustments to the power settings of an electrosurgical generator.
    Type: Application
    Filed: December 26, 2014
    Publication date: July 2, 2015
    Inventors: Michael D. Ehninger, Paul R. Borgmeier, Darcy W. Greep, Roger Millis, Melissa K. Fischer
  • Patent number: 8739601
    Abstract: Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: June 3, 2014
    Assignee: Zevex, Inc.
    Inventors: Mark Stringham, Roger Millis, John Foley, David Blaine
  • Patent number: 8646309
    Abstract: Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: February 11, 2014
    Assignee: Zevek, Inc.
    Inventors: Mark Stringham, Roger Millis, John Foley, David Blaine
  • Patent number: 8539812
    Abstract: Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.
    Type: Grant
    Filed: February 5, 2010
    Date of Patent: September 24, 2013
    Assignee: Zevek, Inc.
    Inventors: Mark Stringham, Roger Millis, John Foley, David Blaine
  • Publication number: 20120312073
    Abstract: Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 13, 2012
    Applicant: ZEVEX, INC.
    Inventors: Mark Stringham, Roger Millis, John Foley, David Blaine
  • Publication number: 20120312072
    Abstract: Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.
    Type: Application
    Filed: August 24, 2012
    Publication date: December 13, 2012
    Applicant: ZEVEX, INC.
    Inventors: Mark Stringham, Roger Millis, John Foley, David Blaine
  • Patent number: 7897327
    Abstract: A method for controlling a pump for delivery of liquid to an organ over a series of fixed-length time intervals f, each interval f comprising a time t1 and a time t2 wherein t1+t2 equals the length of interval f. The method comprises allowing output pressure of the pump to decrease over time t1, increasing output pressure of the pump over time t2, comparing achieved pump output pressure to a predetermined pressure at about the end of interval f, and at least one of (i) adjusting t1 and t2 if necessary so the predetermined pressure is approximated by the output pressure at the end of the next interval f, and (ii) adjusting a rate of change of the output pressure during at least one of t1 and t2 if necessary so the predetermined pressure is approximated by the output pressure at the end of the next interval f.
    Type: Grant
    Filed: June 2, 2003
    Date of Patent: March 1, 2011
    Assignee: Organ Recovery Systems, Inc.
    Inventors: Roger Millis, John Foley, Doug Schein, John Brassil
  • Publication number: 20100212407
    Abstract: Air bubbles may be characterized by an air bubble detector by choosing an optimum set of frequencies and then comparing a return signal from a sensor receiving those frequencies against an internal reference. The number of pulses that exceed the internal reference represents a width and may be counted. The width, as counted, may be correlated to bubble characteristics including volume.
    Type: Application
    Filed: February 5, 2010
    Publication date: August 26, 2010
    Inventors: MARK STRINGHAM, ROGER MILLIS, JOHN FOLEY, DAVID BLAINE